Discussion Paper
Testing for Non-nested Conditional Moment Restrictions via Conditional Empirical Likelihood
We propose non-nested tests for competing conditional moment restriction models using a method of empirical likelihood. Our tests are based on the method of conditional empirical likelihood developed by Kitamura, Tripathi and Ahn (2004) and Zhang and Gijbels (2003). By using the conditional implied probabilities, we develop three non-nested tests: the moment encompassing, Cox-type, and efficient score encompassing tests.